Results 81 to 90 of about 46,992 (252)
Carbon Energy, EarlyView.This study shows that lithium induces Li–Ni–O/Ni heterostructures on biochar, creating oxygen vacancies and optimal acid–base environments that enhance steam activation and suppress carbon deposition. These interfacial effects and synergistic modulation lead to high hydrogen yields at moderate temperatures, providing a scalable catalyst design strategy
Jiali Guo +7 more
wiley +1 more source
Chemistry – A European Journal, EarlyView.Efficient cationic gold(I)‐catalyzed intermolecular cyclopropanation of 7‐alkynylnorbornadiene derivatives has been developed. This methodology offers the synthesis of a new class of norbornene derivatives in high yield with excellent diastereoselectivity.
Kento Ishida +3 more
wiley +1 more source
Chemistry – A European Journal, EarlyView.A one‐shot Pd(II)‐catalyzed C─H activation strategy enables the rapid conversion of simple linear propiolamides into structurally diverse mono‐, di‐, and tri‐olefin‐bridged MPAEs. This cascade process orchestrates up to six sequential C–H activations in a single operation, providing streamlined access to highly conjugated architectures.
Haiyu Wang +4 more
wiley +1 more source
MoleculesWe report a step-economic strategy for the direct synthesis of novel polycyclic N-heterocycle-fused naphthoquinones by merging intramolecular oxidative coupling and cascade [4 + 2] cycloaddition.
Yu Dong +9 more
doaj +1 more source
Post‐Modification of Tripyrenylenes to Enantiopure π‐Extended D3‐Symmetric Propellers
Chemistry – A European Journal, EarlyView.The post‐modification of tripyrenylenes to π‐extended enantiopure propellers with tris‐phenanthrophenazines is presented and the chiroptical properties as well as the solid‐state packings investigated in comparison to the corresponding racemic mixtures.
Dennis Popp +8 more
wiley +1 more source
Synthesis and Structure of an S‐Shaped Double Expanded Helicene With Seven Fused Anthracene Units
Chemistry – A European Journal, EarlyView.The anthracene‐fused aromatic compound was synthesized by four‐fold cycloisomerization of the corresponding alkyne precursor. X‐ray crystallographic analysis revealed that this compound had a double helical structure of Ci symmetry, in which the terminal and central anthracene units were triply stacked.
Shinji Toyota +6 more
wiley +1 more source
Chemistry – A European Journal, EarlyView.Nitrooxylation—the installation of nitrate esters (–ONO2) has evolved from classical mixed‐acid protocols to catalytic and mechano‐, flow‐, photo‐, and electrochemical strategies. This review delineates ionic and radical manifolds for C–ONO2 bond formation, emphasizing mechanistic control, selected substrate scope, and selectivity.
Jayanta Dey, Dmitry Katayev
wiley +1 more source
MoleculesSilole- and phosphole-containing polycyclic aromatic compounds have attracted significant attention in the field of organic functional materials. The structure of the aromatic units has great impact on the photophysical properties of the resulting silole-
Suzuho Morishita +3 more
doaj +1 more source
Chemistry – A European Journal, EarlyView.We demonstrate the power of high‐resolution infrared spectroscopy and complementary quantum chemical calculations to unravel the evolution of the aromatic charge resonance interaction (CR) in cold trimer radical cations for the prototypical pyrrole clusters.
Dashjargal Arildii, Otto Dopfer
wiley +1 more source
Decoding Heptazine Architectures: From Molecular Association to Structural Insight
Chemistry – A European Journal, EarlyView.A comprehensive study (NMR and theoretical) of three novel heptazine derivatives that self‐assemble into dimers has been conducted, highlighting their versatility as a platform for multifunctional supramolecular and optoelectronic materials. ABSTRACT Heptazine (Hpz) derivatives display remarkable supramolecular organization governed by noncovalent ...
Silvia del Moral +5 more
wiley +1 more source